/Engine/Source/Runtime/Core/Public/GenericPlatform/GenericPlatformCrashContext.h
Updates (or adds if not already present) arbitrary engine data to the crash context (will remove the key if passed an empty string)
static void SetEngineData ( const [FString](API\Runtime\Core\Containers\FString) & Key, const [FString](API\Runtime\Core\Containers\FString) & Value )